Dell Tarks News Today

John Berman and Brianna Keilar report the latest news and top stories.

Increased effectiveness of the second shot? >> i think like the other shots it works well against dell tarks but it did take a bit of a hit. >> elizabeth cohen, important development for the people wanting to know what it all means for johnson & johnson. thank you very much. we have breaking news on the evacuation efforts in afghanistan. just in from the white house, new numbers, 19,000 people taken out by the u.s. and coalition forces over the last 24 hours. again, a very high number. wherell...